SOLUTION: An electronics store receives a shipment of 30 graphing calculators, including 6 that are defective. Four of these calculators are selected for a local high school. A.How many s

Question 872875: An electronics store receives a shipment of 30 graphing calculators, including 6 that are defective. Four of these calculators are selected for a local high school.
A.How many selections can be made?
B.How many of these selections will contain no defective calculators?
Found 2 solutions by ewatrrr, psbhowmick:
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Re TY
Having a wonderful Weekend. TY
Note: 6def..So...B. agree answer is 10,626
30C: 4def, 26not
4 selected
A. 30C4 = 27,405
B. (6def) 24C4 = 10,626
Answer by psbhowmick(878) (Show Source): You can put this solution on YOUR website!
A) 30C4 = 27*28*29*30/24 = 27405
B) 24C4 = 21*22*23*24/24 = 10626
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